What Breed is My Dog?

I think my dog is Australian Shepherd or may even have some Pit Bull in her, because whenever she opens her mouth, there are some wrinkles. Some people said it's Australian Cattle Dog, but I am not sure. The owner said it's a Blue Heeler, Australian Shepherd. I couldn't get a good picture of him, but I really need to know.

I just got a DNA Breed Identification kit in the mail. It cost 59.95 from Amazon. You may be able to get it for less if you search for coupons or deals. You swab the inside of the cheeks with the 2 swabs provided and send them back to the company. If you really need to know it may be worth it.